Holidays are hard.
We make them easy.

Don't let sourcing and maintaining holiday information get in the way of building your product.

For Developers. By Developers.

For Developers

By Developers

We understand the time and effort that goes into holiday data.
Finding information, loading databases, ensuring accuracy, keeping it current.
Time-consuming work that gets in the way of improving your product.
We believe developers are happiest coding, not maintaining data.

International holidays and observances

Past, present, and future. We got you covered.

250 Countries

3,680 States & Provinces

109 Languages

Years 1-2050+

“Invaluable resource for adding accurate and comprehensive holiday information to our app.”
“Humongous time saver.”
“Before Holiday API we had to manually build calendars (a/k/a a pain in the ass).”

Ready to benefit from holiday intelligence?

Improved shipping and delivery estimates. Automatic blocking of scheduling calendars. Better sales forecasting.

Built for development teams that demand excellence

No request throttling
1,000,000 requests per month. Access our API as fast as you want, whenever you want.
Always up-to-date
Our proprietary holiday generation system verifies holidays around the clock so you don't have to.
Best-in-class support
Email support from actual senior software engineers. Super fast support from the team that built it.
Uptime, all the time
Our enterprise-grade infrastructure is designed around five-nines and battle-tested daily.
Offline storage
Need a local copy? With an active subscription, store whatever you want (free plan limited to 24 hours).

Serving 85+ million requests per month to
40,000+ developers and businesses.

AB InBev Adobe Creative Artists Agency Cariuma Fiverr Massachusetts Institute of Technology Nielsen Payoneer Pilot Shopify Slack Spreadshirt SquareTrade Todoist Upwork USAA